According to Edith Reiter's 2014 book, this instrument was completed on 27 August 1929 and originally sold to a buyer in Canada.
Heckelphone #4107 is a model 36i that has been converted later into a model 36 voll cons. Howe & Hurd (2004) describe it as having nickel keys and a two-piece bell with three vents, perforated bottom plate and a center peg.
As of 2020, heckelphone #4107 belongs to noted heckelphone specialist Peter Hurd of Bellingham (WA), USA. It was previously owned by a private musician in Pittsburgh (PA); earlier, it belonged to bassoonist Maxine Shimer of the Canadian Double Reed Sextette.
Further details of the history of heckelphone #4107 remain unclear.